Troubleshooting & repair, Mode board removal and replacement (continued), 5/16" screws – Lincoln Electric INVERTEC V350-PRO SVM152-A User Manual
Page 106: F-68
TROUBLESHOOTING & REPAIR
F-68
F-68
V350-PRO
MODE BOARD
REMOVAL AND REPLACEMENT (continued)
FIGURE F.28. – CASE FRONT
9. Remove plug #J34 from the mode board.
10. Remove plug #J31 originating from the status
board located directly above the mode board.
11. Open the cover of the weld mode display on
the front of the machine.
12. Using a 5/16” nut driver, remove the three
5/16” screws as shown in Figure F.28.
13. Carefully maneuver the the mode faceplate up
and away from the machine. The bottom of
the plate will come out first. Note: The mode
board will still be attached to its mounting
plate.
14. Place both knobs in the full counter clockwise
position to gain access to the mounting
screws.
15. Using a small flathead screwdriver, loosen the
screw in the “Hot Start” knob and the “Arc
Control” knob. The knobs should slide off of
their shafts. See Figure F.29.
16. Using a 1/4” wrench remove the nuts and their
washers behind the “Hot Start” and “Arc
Control” knobs.
17. Remove the mode board by gently prying from
behind the board.
O F F
O F F
O F F
O F F
O F F
O F F
O F F
O F F
O N
O N
HO
HOT ST
T START
WELD MODE
WELD MODE
ARC CONTR
ARC CONTROL
OL
CC-STICK SOFT
CC-STICK CRISP
TIG GTAW
CV-WIRE
CV-FLUX CORED
-4
+4
+4
+2
+2
-2
0
-6
+6
+6
-10
-10
SOFT
SOFT
CRISP
CRISP
+10
+10
-8
+8
+8
5
4
3
2
1
0
6
10
10
9
8
7
SELECT
REMO
REMOTE
TE
ON
ON
REMO
REMOTE
TE
LOCAL
LOCAL
m
WELD
WELD TERMINALS
TERMINALS
OUTPUT
OUTPUT
CONTR
CONTROL
OL
SELECT
SELECT
SELECT
SELECT
MPS
MPS
A
OL
OLTS
TS
V
5/16" Screws